Choriocarcinoma

Chorion is a tissue that appears during pregnancy and belongs to placental trophoblasts. Choriocarcinoma is a highly malignant tumor that can occur after hydatidiform mole, abortion, or full-term delivery, and rarely after ectopic pregnancy. This disease is common in women of childbearing age. The main symptoms include irregular vaginal bleeding, enlarged uterus, abdominal pain, pseudopregnancy, and ovarian cysts.